NORCROSS  Andrae Brooks was enraptured in a PlayStation game when a gunman burst into apartment No. 3258B on Friday and fired several rounds from a chrome, semi-automatic handgun.

One bullet hit Brooks in the head as he played video games in the living room of the Madison Ridge Apartments unit, a wound that would later kill him. He had turned 8 about seven weeks earlier.

Police on Monday continued the search for the gunman, along with his alleged accomplice who one witness said stayed outside the apartment during the attempted robbery. Both are described as medium-built black men who fled on foot.

Three days after the killing, no suspects had been identified.

"Investigators are working diligently on the case," Gwinnett police spokesman Cpl. David Schiralli said Monday.

Brooks and his father, Andrae Brooks, 27, came from Doraville so the elder Brooks could get his haircut by a barber friend who lives in a unit of the Indian Trial Road complex. The gunman forced entry just after 4 p.m. and ordered everyone on the ground while the other played lookout, police said.

The boy was transported to a nearby Publix parking lot before being airlifted to Children's Healthcare of Atlanta at Scottish Rite, where he died later Friday night. The shot that hit him was believed to be accidental, police said.

A manager at Madison Ridge wouldn't say Monday if additional safety measures have been taken in the wake of the boy's killing.

"No more information is being disclosed at the moment," he said.

The well-kept complex has been no stranger to nefarious activity in recent years, according to police records.

In March 2007, a man selling ice cream at the complex told police he was accosted and robbed by three teenagers.

A year later, a man parking his car was blocked in by a gunman who demanded money at the victim's car window, then fled with about $150, records show.

Earlier this year, U.S. Marshals tracked down a 4-year-old boy at the complex who'd been kidnapped from his Cobb County home in February.

Schiralli said Gwinnett police have been called to the complex dozens of times in the last calendar year, including four times to investigate reports of a firearm discharging.

Police and witnesses described the suspects as about 5 feet 10 inches tall. According to a police report, the gunman wore a plain, white thermal shirt and dark blue jeans.